Since I've upgraded my kernel from 3.14 -> 3.3.8, I've got no sound anymore. I've re-installed alsa-tools, alsa-utils without any luck. When I boot the pc and the sound modules are loaded, I hear randomly an annoying tick from the speakers, it's the same sound like if you mute/unmute the master. I hear the same tick with or without playing music, but I don't hear the music. The ticking is gone when you mute the master.